Resetting An Interface Disabled By Udld; Udld And Ethernet Flow Points (Efps) - Cisco 3845 - Security Bundle Router Software Manual

Configuring UDLD
Command
Step 3
udld port [aggressive]
Step 4
end
Step 5
show udld interface-id
Step 6
copy running-config startup-config

Resetting an Interface Disabled by UDLD

Beginning in privileged EXEC mode, follow these steps to reset all ports disabled by UDLD:
Command
Step 1
udld reset
Step 2
show udld
You can also bring up the port by using these commands:
•
•
•
•

UDLD and Ethernet Flow Points (EFPs)

For UDLD to peer with a neighbor on a port that has an Ethernet Virtual Connection (EVC) EFP service
instance configured, you need to enter the l2 protocol peer udld service-instance configuration
command on the service instance. See the
for more information on EFPs.
Cisco ME 3800X and 3600X Switch Software Configuration Guide
22-6
The shutdown interface configuration command followed by the no shutdown interface
configuration command restarts the disabled port.
The no udld {aggressive | enable} global configuration command followed by the udld
{aggressive | enable} global configuration command re-enables the disabled ports.
The no udld port interface configuration command followed by the udld port [aggressive]
interface configuration command re-enables the disabled fiber-optic port.
The errdisable recovery cause udld global configuration command enables the timer to
automatically recover from the UDLD error-disabled state, and the errdisable recovery interval
interval global configuration command specifies the time to recover from the UDLD error-disabled
state.
Purpose
UDLD is disabled by default.
udld port—Enables UDLD in normal mode on the specified port.
•
udld port aggressive—Enables UDLD in aggressive mode on the
•
specified port.
Note Use the no udld port interface configuration command to
disable UDLD on a specified fiber-optic port.
For more information about aggressive and normal modes, see the
"Modes of Operation" section on page
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Purpose
Reset all ports disabled by UDLD.
Verify your entries.
"Configuring Ethernet Virtual Connections (EVCs)"
Chapter 22 Configuring UDLD
22-1.
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